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  <title>Retrieves information about the most recently executed query</title>
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  <div id="layout-content"><div id="function.maxdb-info" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">maxdb_info</h1>
  <h1 class="refname">maxdb::info</h1>
  <p class="verinfo">(PECL maxdb &gt;= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_info</span> -- <span class="refname">maxdb::info</span> &mdash; <span class="dc-title">Retrieves information about the most recently executed query</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.maxdb-info-description">
  <h3 class="title">说明</h3>
  <p class="para">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>maxdb_info</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
   ) : <span class="type">string</span></div>

  <p class="para rdfs-comment">面向对象风格</p>
  <div class="fieldsynopsis"><span class="type">string</span> <var class="varname">$maxdb-&gt;info</var>;</div>

  <p class="para">
   The <span class="function"><strong>maxdb_info()</strong></span> function returns a string providing
   information about the last query executed. The nature of this string is
   provided below:
  </p>
  <p class="para">
   <table class="doctable table">
    <caption><strong>Possible maxdb_info return values</strong></caption>
    
     <thead>
      <tr>
       <th>Query type</th>
       <th>Example result string</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>INSERT INTO...SELECT...</td>
       <td>Records: 100 Duplicates: 0 Warnings: 0</td>
      </tr>

      <tr>
       <td>INSERT INTO...VALUES (...),(...),(...)</td>
       <td>Records: 3 Duplicates: 0 Warnings: 0</td>
      </tr>

      <tr>
       <td>LOAD DATA INFILE ...</td>
       <td>Records: 1 Deleted: 0 Skipped: 0 Warnings: 0</td>
      </tr>

      <tr>
       <td>ALTER TABLE ...</td>
       <td>Records: 3 Duplicates: 0 Warnings: 0</td>
      </tr>

      <tr>
       <td>UPDATE ...</td>
       <td>Rows matched: 40 Changed: 40 Warnings: 0</td>
      </tr>

     </tbody>
    
   </table>

  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    Queries which do not fall into one of the above formats are not supported.
    In these situations, <span class="function"><strong>maxdb_info()</strong></span> will return an empty string.
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.maxdb-info-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   A character string representing additional information about the most recently executed query.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.maxdb-info-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1375">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$maxdb&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"RED"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;temp.t1&nbsp;LIKE&nbsp;hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;INSERT&nbsp;INTO&nbsp;..&nbsp;SELECT&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"INSERT&nbsp;INTO&nbsp;temp.t1&nbsp;SELECT&nbsp;*&nbsp;FROM&nbsp;hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">info</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
   </div>

  </div>
  <div class="example" id="example-1376">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"RED"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;temp.t1&nbsp;LIKE&nbsp;hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;INSERT&nbsp;INTO&nbsp;..&nbsp;SELECT&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"INSERT&nbsp;INTO&nbsp;temp.t1&nbsp;SELECT&nbsp;*&nbsp;FROM&nbsp;hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
   </div>

  </div>
  <p class="para">以上例程的输出类似于：</p>
  <div class="example-contents screen">
<div class="cdata"><pre>
Records: 25 Duplicates: 0 Warnings: 0
</pre></div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.maxdb-info-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="maxdb_affected_rows.html" class="function" rel="rdfs-seeAlso">maxdb_affected_rows()</a> - Gets the number of affected rows in a previous MaxDB operation</span></li>
    <li class="member"><span class="function"><a href="maxdb_warning_count.html" class="function" rel="rdfs-seeAlso">maxdb_warning_count()</a> - Returns the number of warnings from the last query for the given link</span></li>
    <li class="member"><span class="function"><a href="maxdb_num_rows.html" class="function" rel="rdfs-seeAlso">maxdb_num_rows()</a> - Gets the number of rows in a result</span></li>
   </ul>
  </p>
 </div>


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